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The Safe Drinking Water Information System (SDWIS) contains information about public water systems and their violations of EPA's drinking water regulations, as reported to EPA by the states. These regulations establish maximum contaminant levels, treatment techniques, and monitoring and reporting requirements to ensure that water systems provide safe water to their customers. This search will help you to find your drinking water supplier and view its violations and enforcement history since 1993.

You may select systems either by locating systems within a geographic area or by entering the water system ID number. For more detailed information about the water you drink, contact your local water supplier directly or call your state drinking water agency. To find the phone number for your state's drinking water agency, click here or call the Safe Drinking Water Hotline at 1-800-426-4791.

For national and state-by-state information, please see the Office of Ground Water and Drinking Water's drinking water facts and figures page.

NOTICE: EPA is aware of inaccuracies and underreporting of some data in the Safe Drinking Water Information System. We are working with the states to improve the quality of the data.

Geography Search

Select a state to search by clicking on the map or on the text links below.

Map of the United States, the text version is below.
Washington Oregon Nevada Arizona Utah Idaho Montana Wyoming Colorado New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Indiana Ohio Kentucky Tennessee Mississippi Alabama Florida Georgia South Carolina North Carolina Virginia West Virginia Pennsylvania New York New York Maine Michigan Alaska Hawaii Puerto Rico Virgin Islands California Texas Vermont New Hampshire Massachussetts Connecticut New Jersey Rhode Island Rhode Island Massachussetts New Hampshire Vermont Delaware Delaware Maryland Distict of Columbia Maryland

Other SDWIS sites include:

American Samoa Federated States of Micronesia Guam Marshall Islands Northern Mariana Islands Republic of Palau
Text Version
Alaska | Alabama | Arkansas | Arizona | California | Colorado | Connecticut | District of Columbia | Delaware | Florida | Georgia | Hawaii | Iowa | Idaho | Illinois | Indiana | Kansas | Kentucky | Louisiana | Maine | Maryland | Massachusetts | Michigan | Minnesota | Mississippi | Missouri | Montana | North Carolina | North Dakota | Nebraska | Nevada | New Hampshire | New Jersey | New Mexico | New York | Ohio | Oklahoma | Oregon | Pennsylvania | Puerto Rico | Rhode Island | South Carolina | South Dakota | Tennessee | Texas | Utah | Virginia | Virgin Islands | Vermont | Washington | Wisconsin | West Virginia | Wyoming |

Other SDWIS sites include:

American Samoa | Federated States of Micronesia | Guam | Marshall Islands
Northern Mariana Islands | Republic of Palau | Indian Tribes

Water System ID Search

Enter a Water System ID Number. All Water System ID numbers are nine characters in length, with the first two digits usually composed of the state abbreviation. Then, click on the "Search" button.

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